| Business | Phone |
| Utility Consultants Inc 740 Springdale Dr # 203, Exton 19341 | (610) 363-3844 |
| Engineering Solutions Inc 436 Creamery Way # 100, Exton 19341 | (610) 524-1357 |
| Pagnotta Engineering Inc 300 N Pottstown Pike # 180, Exton 19341 | (610) 280-3313 |
| Nth Consultants Ltd 444 Creamery Way, Exton 19341 | (610) 524-2300 |
| On Line Monitoring Inc 300 National Rd # 400, Exton 19341 | (484) 875-0735 |
| Gts Technologies Inc 102 Shoen Rd, Exton 19341 | (610) 524-0682 |